Hydrogenation of the ternary silicides RENiSi (RE = Ce, Nd) crystallizing in the tetragonal LaPtSi-type structure
Langue
en
Article de revue
Ce document a été publié dans
Journal of Alloys and Compounds. 2005, vol. 397, n° 1-2, p. 17-22
Elsevier
Résumé en anglais
Hydrogenation of isostructural RENiSi (RE = Ce, Nd) intermetallic compounds has been performed. Neutron diffraction experiments on CeNiSiD1.2(1) indicates that D-atoms fully occupy the [Ce3Ni2]- and partially fill the ...Lire la suite >
Hydrogenation of isostructural RENiSi (RE = Ce, Nd) intermetallic compounds has been performed. Neutron diffraction experiments on CeNiSiD1.2(1) indicates that D-atoms fully occupy the [Ce3Ni2]- and partially fill the [Ce3Si2]-bipyramidal sites. The strong hybridisation between Ce and D in these sites can explain the observed increase of the cerium valence after deuterium insertion. The magnetic phase diagram of NdNiSi has been established and highlights two antiferromagnetic transitions at TN1 = 6.8(2) K and TN2 = 2.8(2) K, which disappear after hydrogenation.< Réduire
Mots clés en anglais
Hydrogenation
Rare-earth-based intermetallics
Neutron diffraction
Magnetic phase diagram
Origine
Importé de halUnités de recherche